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authorDr. David von Oheimb <David.von.Oheimb@siemens.com>2023-07-16 14:55:35 +0200
committerPauli <pauli@openssl.org>2023-07-19 10:01:38 +1000
commit61c8146aa36b84afd9d83c87c9a01138979ffd60 (patch)
tree77eaa0e7177ab15607d901c272ade95b8ffb97ea /doc
parent85b89a8c6da76c241b2f62cf2944b5cf35dfcc24 (diff)
EVP_KDF.pod: extend text on 'salt' and 'info' parameters
Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/21469)
Diffstat (limited to 'doc')
-rw-r--r--doc/man3/EVP_KDF.pod7
1 files changed, 5 insertions, 2 deletions
diff --git a/doc/man3/EVP_KDF.pod b/doc/man3/EVP_KDF.pod
index 3c8914bd26..374318cbcf 100644
--- a/doc/man3/EVP_KDF.pod
+++ b/doc/man3/EVP_KDF.pod
@@ -191,7 +191,7 @@ For those KDF implementations that support it, this parameter sets the password.
=item "salt" (B<OSSL_KDF_PARAM_SALT>) <octet string>
-Some KDF implementations can take a salt.
+Some KDF implementations can take a non-secret unique cryptographic salt.
For those KDF implementations that support it, this parameter sets the salt.
The default value, if any, is implementation dependent.
@@ -229,7 +229,10 @@ sets the key.
=item "info" (B<OSSL_KDF_PARAM_INFO>) <octet string>
-This parameter sets the info, fixed info, other info or shared info value.
+Some KDF implementations, such as L<EVP_KDF-HKDF(7)>, take an 'info' parameter
+for binding the derived key material
+to application- and context-specific information.
+This parameter sets the info, fixed info, other info or shared info argument.
You can specify this parameter multiple times, and each instance will
be concatenated to form the final value.